Block 8 complete: streaks, notifications, referrals, premium identity, gamification

src/app/api/referrals/stats/route.ts

@@ -0,0 +1,61 @@
+import { NextRequest, NextResponse } from "next/server";
+import { prisma } from "@/lib/prisma";
+import { requireAuth } from "@/lib/auth";
+
+// Same encodeBase62 used in the code route
+function encodeBase62(id: string): string {
+  const chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
+  let hash = 0;
+  for (let i = 0; i < Math.min(id.length, 10); i++) {
+    hash = (hash * 31 + id.charCodeAt(i)) >>> 0;
+  }
+  let code = "";
+  while (code.length < 6) {
+    code = chars[hash % 62] + code;
+    hash = Math.floor(hash / 62);
+    if (hash === 0 && code.length < 6) {
+      hash = Math.floor(Math.random() * 62 ** (6 - code.length));
+    }
+  }
+  return code;
+}
+
+export async function GET(req: NextRequest) {
+  const jwtPayload = await requireAuth(req);
+  if (!jwtPayload) {
+    return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+  }
+
+  try {
+    const userId = jwtPayload.userId;
+
+    const [totalReferrals, upgradedCount, earnings] = await Promise.all([
+      prisma.referral.count({
+        where: { referrerId: userId },
+      }),
+      prisma.referral.count({
+        where: { referrerId: userId, status: "upgraded" },
+      }),
+      prisma.referral.aggregate({
+        where: { referrerId: userId },
+        _sum: { rewardFlh: true },
+      }),
+    ]);
+
+    const referralCode = encodeBase62(userId);
+
+    return NextResponse.json({
+      totalReferrals,
+      upgradedCount,
+      totalEarned: earnings._sum.rewardFlh || 0,
+      referralCode,
+      shareLink: `${process.env.NEXT_PUBLIC_APP_URL || "https://falah.app"}/join?ref=${referralCode}`,
+    });
+  } catch (error) {
+    console.error("Referral stats error:", error);
+    return NextResponse.json(
+      { error: "Failed to get referral stats" },
+      { status: 500 }
+    );
+  }
+}